Finely grate the coconuts taking care not to including any of thee brown portion.
Take a large, heavy bottomed pan, put in the milk and coconut and cook over low heat stirring occasionally, preferably with a wooden ladle, taking care not to allow it to stick to the bottom of the pan.
When the milk thickens considerably add the condensed milk, sugar, cashew nuts and card-amom powder.
Continue to cook stirring it from time to time till it is sticky enough to form a ball or when it leaves the sides of the pan.
While the coconut cooks, grease 2 cookie sheets or large platters.
Remove the coconut mixture from the heat and spread it, while still hot, evenly across the tray to form a layer about ¾” thick.
Even out the mixture with a spatula and allow it to cool.
When it is completely cool, use a knife or pizza cutter to cut to the size and shape of your choice (normally these are cut into about 1” squares or diamond shape).
Serve as a dessert or snack.
Replace grated coco-nut with boiled and smoothly mashed (avoid any lumpy pieces) potatoes. Cool them well.
Then follow the same procedure to make potato burfi.